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Annual CO2 and CH4 fluxes in coastal earthen ponds with Litopenaeus vannamei in southeastern China / Chuan Tong, David Bastviken, Kam Tang, Ping Yang, Hong Yang, Yifei Zhang, Qianqian Guo, Derrick Y.F. Lai

Aquaculture, Volume: 545, Start page: 737229

Swansea University Author: Kam Tang

  • Accepted Manuscript under embargo until: 24th July 2022

Abstract

Small-scale aquaculture operation is increasing rapidly in the world, but its greenhouse gas (GHG) contributions are still poorly assessed. In this study, dissolved concentrations and fluxes of CO2 and CH4 were determined in three coastal shrimp ponds in southeastern China. The annual average CO2 an...

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Published in: Aquaculture
ISSN: 0044-8486
Published: Elsevier BV 2021
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa57440
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Abstract: Small-scale aquaculture operation is increasing rapidly in the world, but its greenhouse gas (GHG) contributions are still poorly assessed. In this study, dissolved concentrations and fluxes of CO2 and CH4 were determined in three coastal shrimp ponds in southeastern China. The annual average CO2 and CH4 fluxes from the ponds were –18.4±7.4 and 38 22.6±6.9 mg m-2 h-1, respectively, suggesting that the shrimp ponds worked as a CO2 sink and a CH4 source. The estimated annual warming potential was 7.1×103 g CO2-eq m-2 yr-1, with approximately 90% from the farming period. Ebullition was the dominant emission pathway for CH4 emission.
Keywords: Carbon dioxide; Methane; Annual fluxes; Emission pathway; Coastal aquaculture ponds; Global change
College: College of Science
Start Page: 737229